Allen, J. W. (1990). Office computer systems for health professionals: A cost-benefit approach to assessing alternative technologies. McGraw-Hill.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रAllen, James W. Office Computer Systems for Health Professionals: A Cost-benefit Approach to Assessing Alternative Technologies. New York: McGraw-Hill, 1990.
एमएलए (9वां संस्करण) प्रशस्ति पत्रAllen, James W. Office Computer Systems for Health Professionals: A Cost-benefit Approach to Assessing Alternative Technologies. McGraw-Hill, 1990.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.